diff options
Diffstat (limited to 'board/technexion/pico-imx7d/pico-imx7d.c')
| -rw-r--r-- | board/technexion/pico-imx7d/pico-imx7d.c | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/board/technexion/pico-imx7d/pico-imx7d.c b/board/technexion/pico-imx7d/pico-imx7d.c new file mode 100644 index 0000000..799751d --- /dev/null +++ b/board/technexion/pico-imx7d/pico-imx7d.c @@ -0,0 +1,289 @@ +/* + * Copyright (C) 2017 NXP Semiconductors + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <asm/arch/clock.h> +#include <asm/arch/crm_regs.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/mx7-pins.h> +#include <asm/arch/sys_proto.h> +#include <asm/gpio.h> +#include <asm/imx-common/iomux-v3.h> +#include <asm/imx-common/mxc_i2c.h> +#include <asm/io.h> +#include <common.h> +#include <fsl_esdhc.h> +#include <i2c.h> +#include <miiphy.h> +#include <mmc.h> +#include <netdev.h> +#include <usb.h> +#include <power/pmic.h> +#include <power/pfuze3000_pmic.h> +#include "../../freescale/common/pfuze.h" + +DECLARE_GLOBAL_DATA_PTR; + +#define UART_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | \ + PAD_CTL_PUS_PU100KOHM | PAD_CTL_HYS) + +#define USDHC_PAD_CTRL (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \ + PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM) + +#define ENET_PAD_CTRL (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_49OHM) +#define ENET_PAD_CTRL_MII (PAD_CTL_DSE_3P3V_32OHM) + +#define ENET_RX_PAD_CTRL (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_49OHM) + +#define I2C_PAD_CTRL (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \ + PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU100KOHM) + +#ifdef CONFIG_SYS_I2C_MXC +#define PC MUX_PAD_CTRL(I2C_PAD_CTRL) +/* I2C4 for PMIC */ +static struct i2c_pads_info i2c_pad_info4 = { + .scl = { + .i2c_mode = MX7D_PAD_SAI1_RX_SYNC__I2C4_SCL | PC, + .gpio_mode = MX7D_PAD_SAI1_RX_SYNC__GPIO6_IO16 | PC, + .gp = IMX_GPIO_NR(6, 16), + }, + .sda = { + .i2c_mode = MX7D_PAD_SAI1_RX_BCLK__I2C4_SDA | PC, + .gpio_mode = MX7D_PAD_SAI1_RX_BCLK__GPIO6_IO17 | PC, + .gp = IMX_GPIO_NR(6, 17), + }, +}; +#endif + +int dram_init(void) +{ + gd->ram_size = PHYS_SDRAM_SIZE; + + return 0; +} + +#ifdef CONFIG_POWER +#define I2C_PMIC 3 +int power_init_board(void) +{ + struct pmic *p; + int ret; + unsigned int reg, rev_id; + + ret = power_pfuze3000_init(I2C_PMIC); + if (ret) + return ret; + + p = pmic_get("PFUZE3000"); + ret = pmic_probe(p); + if (ret) + return ret; + + pmic_reg_read(p, PFUZE3000_DEVICEID, ®); + pmic_reg_read(p, PFUZE3000_REVID, &rev_id); + printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", reg, rev_id); + + /* disable Low Power Mode during standby mode */ + pmic_reg_read(p, PFUZE3000_LDOGCTL, ®); + reg |= 0x1; + pmic_reg_write(p, PFUZE3000_LDOGCTL, reg); + + /* SW1A/1B mode set to APS/APS */ + reg = 0x8; + pmic_reg_write(p, PFUZE3000_SW1AMODE, reg); + pmic_reg_write(p, PFUZE3000_SW1BMODE, reg); + + /* SW1A/1B standby voltage set to 1.025V */ + reg = 0xd; + pmic_reg_write(p, PFUZE3000_SW1ASTBY, reg); + pmic_reg_write(p, PFUZE3000_SW1BSTBY, reg); + + /* decrease SW1B normal voltage to 0.975V */ + pmic_reg_read(p, PFUZE3000_SW1BVOLT, ®); + reg &= ~0x1f; + reg |= PFUZE3000_SW1AB_SETP(975); + pmic_reg_write(p, PFUZE3000_SW1BVOLT, reg); + + return 0; +} +#endif + +static iomux_v3_cfg_t const wdog_pads[] = { + MX7D_PAD_GPIO1_IO00__WDOG1_WDOG_B | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +static iomux_v3_cfg_t const uart5_pads[] = { + MX7D_PAD_I2C4_SCL__UART5_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL), + MX7D_PAD_I2C4_SDA__UART5_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), +}; + +static iomux_v3_cfg_t const usdhc3_emmc_pads[] = { + MX7D_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_DATA0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_DATA1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_DATA2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_DATA3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_DATA4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_DATA5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_DATA6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_DATA7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_GPIO1_IO14__GPIO1_IO14 | MUX_PAD_CTRL(USDHC_PAD_CTRL), +}; + +#ifdef CONFIG_FEC_MXC +static iomux_v3_cfg_t const fec1_pads[] = { + MX7D_PAD_SD2_CD_B__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL_MII), + MX7D_PAD_SD2_WP__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL_MII), + MX7D_PAD_ENET1_RGMII_TXC__ENET1_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX7D_PAD_ENET1_RGMII_TD0__ENET1_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX7D_PAD_ENET1_RGMII_TD1__ENET1_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX7D_PAD_ENET1_RGMII_TD2__ENET1_RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX7D_PAD_ENET1_RGMII_TD3__ENET1_RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX7D_PAD_ENET1_RGMII_TX_CTL__ENET1_RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX7D_PAD_ENET1_RGMII_RXC__ENET1_RGMII_RXC | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), + MX7D_PAD_ENET1_RGMII_RD0__ENET1_RGMII_RD0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), + MX7D_PAD_ENET1_RGMII_RD1__ENET1_RGMII_RD1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), + MX7D_PAD_ENET1_RGMII_RD2__ENET1_RGMII_RD2 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), + MX7D_PAD_ENET1_RGMII_RD3__ENET1_RGMII_RD3 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), + MX7D_PAD_ENET1_RGMII_RX_CTL__ENET1_RGMII_RX_CTL | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), + MX7D_PAD_SD3_STROBE__GPIO6_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL), + MX7D_PAD_SD3_RESET_B__GPIO6_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +#define FEC1_RST_GPIO IMX_GPIO_NR(6, 11) + +static void setup_iomux_fec(void) +{ + imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads)); + + gpio_direction_output(FEC1_RST_GPIO, 0); + udelay(500); + gpio_set_value(FEC1_RST_GPIO, 1); +} + +int board_eth_init(bd_t *bis) +{ + setup_iomux_fec(); + + return fecmxc_initialize_multi(bis, 0, + CONFIG_FEC_MXC_PHYADDR, IMX_FEC_BASE); +} + +static int setup_fec(void) +{ + struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs + = (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR; + + /* Use 125M anatop REF_CLK1 for ENET1, clear gpr1[13], gpr1[17] */ + clrsetbits_le32(&iomuxc_gpr_regs->gpr[1], + (IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK | + IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK), 0); + + return set_clk_enet(ENET_125MHz); +} + +int board_phy_config(struct phy_device *phydev) +{ + unsigned short val; + + /* To enable AR8035 ouput a 125MHz clk from CLK_25M */ + phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7); + phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016); + phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007); + + val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe); + val &= 0xffe7; + val |= 0x18; + phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val); + + /* introduce tx clock delay */ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5); + val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e); + val |= 0x0100; + phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val); + + if (phydev->drv->config) + phydev->drv->config(phydev); + + return 0; +} +#endif + +static void setup_iomux_uart(void) +{ + imx_iomux_v3_setup_multiple_pads(uart5_pads, ARRAY_SIZE(uart5_pads)); +} + +static struct fsl_esdhc_cfg usdhc_cfg[1] = { + {USDHC3_BASE_ADDR}, +}; + +int board_mmc_getcd(struct mmc *mmc) +{ + /* Assume uSDHC3 emmc is always present */ + return 1; +} + +int board_mmc_init(bd_t *bis) +{ + imx_iomux_v3_setup_multiple_pads( + usdhc3_emmc_pads, ARRAY_SIZE(usdhc3_emmc_pads)); + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); + + return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); +} + +int board_early_init_f(void) +{ + setup_iomux_uart(); + +#ifdef CONFIG_SYS_I2C_MXC + setup_i2c(3, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info4); +#endif + + return 0; +} + +int board_init(void) +{ + /* address of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + +#ifdef CONFIG_FEC_MXC + setup_fec(); +#endif + + return 0; +} + +int board_late_init(void) +{ + struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR; + + imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads)); + + set_wdog_reset(wdog); + + /* + * Do not assert internal WDOG_RESET_B_DEB(controlled by bit 4), + * since we use PMIC_PWRON to reset the board. + */ + clrsetbits_le16(&wdog->wcr, 0, 0x10); + + return 0; +} + +int checkboard(void) +{ + puts("Board: i.MX7D PICOSOM\n"); + + return 0; +} + +int board_usb_phy_mode(int port) +{ + return USB_INIT_DEVICE; +} |